I was being eaten alive, and we had company over. One of the ladies gave me a bottle of SOS and told me to go put some on. I went in and slathered this oily substance all over my exposed skin. I was in a hurry because of my guests. and I set the bottle down on the counter and rejoined the party. The bottle, which was oily from the contents, made a mark on my countertop. It bleached the Formica everywhere it touched and actully roughened the surface.
SOS has mineral oil in it. That could be what damaged your counter top.